#13518: CMM compiles with 8.0.2, fails with git HEAD -------------------------------------+------------------------------------- Reporter: erikd | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.1 Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect | Unknown/Multiple error/warning at compile-time | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by rwbarton): Cmm lint could still do a better job with the original program, as slyfox pointed out. * I believe `I32 w` in the formal argument list is meaningless, or misleading. I don't think `I32` is a possible type for a function argument. (Here it is wrong anyways since on the Haskell side you presumably intend to give the function the type `Word# -> Float#`.) * `I32[ptr] = f;` should be an error because `f` is a `F32` not `I32`. * Returning `I32` seems dubious for the same reason that accepting `I32` as an argument does. I think Cmm lint ought to catch all of these. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13518#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler